About Duct Connections
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About Duct Hose
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Crush-Resistant Flexible Duct Hose for Exhaust Fumes
- Flexible
- Color: Black
- Temperature Range: -40° to 400° F
Commonly used in garages, this thick rubber hose will bounce back when stepped on or driven over. Use to vent carbon monoxide exhaust fumes while engine idling. Hose is also for use with smoke and water-based paint fumes.
2" to 4" ID hose has one end that is slightly larger than the other end. To make longer lengths, screw the smaller end of one hose into the larger end of another hose of the same size. When your application requires frequent movement or pulling, use a straight connector.
For technical drawings and 3-D models, click on a part number.
| ID (OD) | Bend Radius | Material Thick. | Interior Surface Texture | Lg., ft. | Each | |
EPDM Rubber | ||||||
|---|---|---|---|---|---|---|
| 3" (3 1/2") × 3 1/16" (3 13/16") | 4" | 0.156" | Ribbed | 11 | 0000000 | 0000000 |
Thread duct hose into all three sides of these connectors to vent two exhausts through one outlet.
| For Hose ID | ID | OD | Max. Temperature, °F | Color | Each | |
EPDM Rubber | ||||||
|---|---|---|---|---|---|---|
| 3" | 3 1/4" | 4" | 350° | Black | 0000000 | 000000 |
Connect these adapters to tailpipes that are 5" dia. and smaller.
| For Hose ID | ID | OD | Max. Temperature, °F | Color | Each | |
EPDM Rubber | ||||||
|---|---|---|---|---|---|---|
| 2", 3" | 5" | 5 1/2" | 350° | Black | 0000000 | 000000 |
Use on vehicles with oval or twin-tip exhaust pipes.
The 3" × 6" adapter fits oval tailpipes that are 2 1/2" × 5 1/2" and smaller, or twin tailpipes up to 2 1/2" dia. each.
The 3 1/2" × 8 1/2" adapter fits oval tailpipes that are 3" × 8" and smaller, or twin tailpipes up to 3" dia. each.
Run your duct hose through a door.
| For Hose ID | ID | OD | Max. Temperature, °F | Each | |
Aluminum  | |||||
|---|---|---|---|---|---|
| 3" | 3 5/8" | 5 1/4" | 400° | 0000000 | 000000 |
Thread duct hose onto these connectors to create longer lengths.
| For Hose ID | ID | OD | Max. Temperature, °F | Each | |
Aluminum | |||||
|---|---|---|---|---|---|
| 3" | 2 7/16" | 3 1/4" | 400° | 0000000 | 000000 |
Quick-Disconnect Duct and Fittings
Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.
Galvanized steel has good corrosion resistance. 304 stainless steel is the most corrosion resistant.
For technical drawings and 3-D models, click on a part number.
304 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| Duct Size | ID | End Construction | Style | Gauge | Each | |
| 3 | 3 1/16" | Rolled | A | 14 | 00000000 | 0000000 |
304 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| Duct Size | ID | End Construction | Style | Gauge | Each | |
| 3 | 3 1/16" | Rolled | A | 14 | 00000000 | 0000000 |
Tee connectors join or split runs of duct.
304 Stainless Steel | |||||
|---|---|---|---|---|---|
| Duct Size | ID | Gauge | End Construction | Each | |
| 3 | 3 1/16" | 22 | Rolled | 00000000 | 0000000 |
Wye connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | ID | Gauge | End Construction | Each | |
| 3 | 3 1/16" | 22 | Rolled | 00000000 | 0000000 |
Wye connectors join or split runs of duct.
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | ID | Gauge | End Construction | Each | |
| 3 | 3 1/16" | 22 | Rolled | 00000000 | 0000000 |
Adapters join quick-disconnect duct to other duct systems. Duct-to-duct with flange adapters provide a secure connection between duct. Duct flanges are also available. Duct-to-hose adapters are slightly undersized. Slide hose over the adapter and hold it in place with a hose clamp (not included).
Saddles add a branch to an existing run of duct. Cut a hole in the duct and fit the saddle over the hole.
Duct Size | Galvanized Steel | |||||
|---|---|---|---|---|---|---|
| (A) | (B) | ID | Gauge | End Construction | Each | |
| 3 | 4 | 3 1/16" | 22 | Rolled | 00000000 | 000000 |
Galvanized Steel | |||||
|---|---|---|---|---|---|
| Duct Size | Sound Absorbed | Gauge | End Construction | Each | |
| 3 | 25% | 20 | Rolled | 00000000 | 0000000 |
304 Stainless Steel | |||||
|---|---|---|---|---|---|
| Duct Size | ID | Gauge | End Construction | Each | |
| 3 | 3 1/16" | 22 | Rolled | 00000000 | 000000 |
Duct Flanges
Bolt flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges.
Steel, galvanized steel, 304 stainless steel, and aluminum flanges are also known as angle rings.
Galvanized steel flanges have good corrosion resistance. Aluminum flanges have good corrosion resistance in wet environments, and weigh less than steel and stainless steel flanges. 304 stainless steel flanges are more corrosion resistant than steel.
For technical drawings and 3-D models, click on a part number.
Steel, 304 Stainless
Steel, and Aluminum
Flange | Mounting | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Overall Dp. | Ht. | Thick. | Fasteners Included | No. of Holes | Hole Dia. | Connection Type | Each | |
Steel | ||||||||||
| 3 | 3 1/16" | 1" | 1" | 1/8" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
Galvanized Steel | ||||||||||
| 3 | 3 1/16" | 1" | 1" | 1/8" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
304 Stainless Steel | ||||||||||
| 3 | 3 1/16" | 7/8" | 1" | 1/8" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
Alumiunum | ||||||||||
| 3 | 3 1/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
Weld-On Duct Flanges
Weld flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges. Also known as angle rings.
For technical drawings and 3-D models, click on a part number.
Flange | Steel | ||||||
|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Overall Dp. | Ht. | Thick. | Connection Type | Each | |
| 3 | 3 1/16" | 1" | 1" | 1/8" | Press Fit | 0000000 | 00000 |